Level 0 ETF basics · Part 9/14
MSCI World criticism: how big is the US concentration?
The MSCI World is regarded as the classic one-ETF portfolio and is often criticized for its heavy US weighting and the dominance of a few mega-caps. The current figures:

The country and sector bars come from the holdings data of the index funds. The US share and the weight of the largest tech names are the points the criticism refers to.
Which fund types change the weighting
- Other regions or factors: small-cap or value funds, for example, lower the weight of the largest companies in an overall portfolio.
- Overlap between two funds is shown in the ETF comparison ; a second fund holding the same names changes little.
- Concentration cuts both ways: the high US weight reflects the market value of US companies and has carried much of the index return in recent years. Whether that continues is open. Our own analysis is in Is the MSCI World too American? .
Information only, not investment advice.